KENWOOD KA-5040R

Commentary

Pre-main amplifier developed with the aim of sound beyond class.

A large power supply of 300 VA is used for the power supply.
In order to improve the performance of the final stage, a final transistor with Pc = 80Wx8 and four single channels is used.

Six relays are used immediately after the signal input part. By switching by relay system, the signal path is short-circuited, and adjacent interference between signals by independent relays is reduced.
The relay used is an inert gas filled type to eliminate signal loss due to oxidation of the contact part.

A pure signal ground line is designed, and the ground line is concentrated at one point of the speaker terminal which outputs the signal to prevent mutual interference in each operation.

Equipped with a source direct circuit that bypasses ton control, balance control, and subsonic circuit, the signal path can be minimized from selector to volume and power amplifier.

It comes with a system remote controller that can operate devices with the Kenwood Synchro mark.

Equipped with a speaker terminal that can be connected to a banana terminal.

Equipped with a MM/MC gain switching phono equalizer amplifier.

Model Rating

Type	Integrated amplifier
Rated output (20 Hz to 20 kHz, both channel operation THD 0.03%)	6 Ω : 90W + 90W 8 Ω : 80W + 80W
Dynamic Power	4 Ω : 175W + 175W 8 Ω : 105W + 105W
Total Harmonic Distortion Factor (CD, 8 Ω, 80W)	20 Hz to 20 kHz : 0.03% 1kHz:0.002%
Frequency characteristic	5 Hz ~ 80 kHz + 0 -3dB (Overall (Line → Speaker))
Signal-to-noise ratio	Phono MM: 80dB(EIAJ) 87 dB (input short) Phono MC: 74dB(EIAJ) 68 dB (input short) DAT, CD, Tuner, AUX, Tape Play : 80dB(EIAJ) 102 dB (input short)
Input sensitivity / impedance (at rated output)	Phono MM : 2.5mV/47k Ω Phono MC : 200 μ V/100 Ω DAT, CD, Tuner, AUX, Tape Play : 200mV/47k Ω
Phono maximum allowable input (Phono → Tape Rec, 1 kHz, THD 0.03%)	MM:120mV MC:10mV
Output Level / Impedance	Tape Rec (Pin) : 200mV/1k Ω
Power supply voltage	100 VAC, 50Hz/60Hz
Power outlet	Total : 200W Power switch interlock : Route 3
Rated power consumption (Electrical Appliance and Material Control Law)	200W
Maximum external dimensions	Width 440x Height 147x Depth 402.5 mm
Weight	11.6kg
Attachment	Remote control